Hi,
I've been training the splits for quite a while now and I've noticed that I can't train them as frequently as I could before. I used to train the splits 30 minutes each day and I got incredibly close into the front-split within 3 weeks, but now I can't even stretch my legs for 15 minutes without having hamstrings pain on the very next day!
This really bothers me as I can now only train them once a week, so I have very little progression on them. What could be the reason for this?